Brown paper bag of danvet.
Acked-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: NDave Airlie <airlied@redhat.com>

* 'for-airlied' of git://people.freedesktop.org/~danvet/drm:
  drm/i810: don't acces hw regs in lastclose
  drm/i810: cleanup reclaim_buffers
  drm: kill drm_sman
  drm/sis: use drm_mm instead of drm_sman
  drm/via: use drm_mm instead of drm_sman
  drm/sman: kill user_hash_tab
  drm/sis: track user->memblock mapping with idr
  drm/via: track user->memblock mapping with idr
  drm/sman: rip out owner tracking
  drm/sman: kill owner tracking interface functions
  drm/via: track obj->drm_fd relations in the driver
  drm/sis: track obj->drm_fd relations in the driver

i810 uses a userspace provided mmio map using the drm core map
infrastructure. By the time we reach lastclose, this is all gone
and our mmio_map pointer points at freed memory. Depending upon
luck that still works, most often it just oopses.

Aside: drm maps aren't refcounted, so userspace can essentially oops
the kernel any time it wants to. Who cares.
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

My dear old i815 always hits the deadlocked on reclaim_buffers
warning. Switch over to the idlelock duct-tape on hope that
works better. I've fired up my i815 and now closing glxgears doesn't
take 5 seconds anymore. \o/
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

Merge branch 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-core-next

* 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6: (102 commits)
  drm/nouveau/ttm: fix crash as a result of a recent ttm change
  drm/nouveau: Fix notifier blocks over the 4GB mark.
  drm/nouveau: Fix pushbufs over the 4GB mark.
  drm/nvc0/pm: initial engine reclocking
  drm/nouveau: move hpd enable/disable to common code
  drm/nv40/disp: implement support for hotplug irq
  drm/nouveau/gpio: reimplement as nouveau_gpio.c, fixing a number of issues
  drm/nouveau: just pass gpio line to pwm_*, not entire gpio struct
  drm/nouveau/hwsq: remove some magic, give proper opcode names
  drm/nv50/pm: introduce hwsq-based memory reclocking
  drm/nv04/disp: handle dual-link spwg panels without needing quirks
  drm/nouveau/dp: remove broken display depth function, use the improved one
  drm/nouveau/mxm: implement ROM shadow method
  drm/nouveau/mxm: implement _DSM shadow method
  drm/nouveau/mxm: implement wmi shadow method
  drm/nouveau/mxm: initial implementation of dcb sanitisation
  drm/nouveau/disp: parse connector info directly in nouveau_connector.c
  drm/nouveau/i2c: handle bit-banging ourselves
  drm/nouveau/i2c: fix debug message
  drm/nouveau/i2c: tidy up bit-bang helpers, also fixing nv50 setsda bug
  ...

"drm/ttm: callback move_notify any time bo placement change v4" failed to
avoid a NULL pointer dereference in nouveau caused by move_notify being
expected to handle that case now.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

No longer used.
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

v2: Smash compile fix from Tormod Volden <debian.tormod@gmail.com> for
CONFIG_FB_SIS on top of this.
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

To make the transition in a piece-wise and bisectable way possible,
I've hijacked the ->owner_list from drm_sman. While transitioning, the
list_add was done by the driver, while the list_del was still done by
the dying sman code.

Now that we are in full control of ->owner_list, do the list_del
ourselves.

v2: Better explain the list_del trickery as suggested by Chris Wilson.
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

No longer used.
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

Massive indirection through a hashtable for a simple key->pointer
look-up actually just adds bloat.

v2: Drop the misleading comment noted by Chris Wilson.
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

In contrast to kms drivers, sis/via _always_ associated a buffer with
a drm fd. So by the time we reach lastclose, all open drm fds are gone
and with them their associated objects.

So when sis/via call drm_sman_cleanup in their lastclose funcs, that
will free 0 objects.

The owner tracking now serves no purpose at all, hence rip it ou. We
can't kill the corresponding fields in struct drm_memblock_item yet
because we hijack these in the new driver private owner tracking. But
now that drm_sman.c doesn't touch ->owner_list anymore, we need to
kill the list_move hack and properly add the item to the file_priv
list.

Also leave the list_del(&obj->owner_list) in drm_sman_free for the
moment, it will move to the drivers when sman disappears completely.

v2: Remove the redundant INIT_LIST_HEAD as noted by Chris Wilson
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

These are now unused.
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

Exactly like the previous patch for sis.
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

By attach a driver private struct to each open drm fd.

Because we steal the owner_list from drm_sman until things settle,
use list_move instead of list_add.

This requires to export a drm_sman function temporarily before
drm_sman will die for real completely.
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

-next reported a messy merge, so I've merged my upstream pull into
my -next tree.

Conflicts:
	drivers/gpu/drm/vmwgfx/vmwgfx_kms.c

Signed-off-by: NFrancisco Jerez <currojerez@riseup.net>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NFrancisco Jerez <currojerez@riseup.net>
Tested-by: NBen Skeggs <bskeggs@redhat.com>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

No idea why I didn't do this initially... NVD9 HPD is now enabled.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

- moves out of nouveau_bios.c and demagics the logical state definitions
- simplifies chipset-specific driver interface
- makes most of gpio irq handling common, will use for nv4x hpd later
- api extended to allow both direct gpio access, and access using the
  logical function states
- api extended to allow for future use of gpio extender chips
- pre-nv50 was handled very badly, the main issue being that all GPIOs
  were being treated as output-only.
- fixes nvd0 so gpio changes actually stick, magic reg needs bashing
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

We don't need more than the line id to determine the PWM controller, and
the GPIO interfaces are about to change somewhat.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

More work needs to be done on supporting the different memory types.

v2 (Ben Skeggs):
- fixed up conflicts from not having pausing patch first
- restructured code somewhat to fit with how all the other code works
- fixed bug where incorrect mpll_ctrl could get set sometimes
- removed stuff that's cargo-culted from the binary driver
- merged nv92+ display disable into hwsq
- fixed incorrect opcode 0x5f magic at end of ucode
Signed-off-by: NMartin Peres <martin.peres@ensi-bourges.fr>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Untested, -ENOHW.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

The DCB table provided by the VBIOS on most MXM chips has a number of
entries which either need to be disabled, or modified according to the
MXM-SIS Output Device Descriptors.

The x86 vbios code usually takes care of this for us, however, with the
large number of laptops now with switchable graphics or optimus, a lot
of the time nouveau is responsible for POSTing the card instead - leaving
some fun situations like, plugging in a monitor and having nouveau decide
3 connectors actually just got plugged in..

No MXM-SIS fetching methods implemented yet.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Another case where we parsed vbios data to some structs, then again use
that info once to construct another set of data.  Skip the intermediate
step.

This is also slightly improved in that we can now use DCB 3.x connector
table info, which will allow NV4x to gain hotplug support, and to make
quirks for SPWG LVDS panels unnecessary.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

i2c-algo-bit doesn't actually work very well on one card I have access to
(NVS 300), random single-bit errors occur most of the time - what we're
doing now is closer to what xf86i2c.c does.

The original plan was to figure out why i2c-algo-bit fails on the NVS 300,
and fix it.  However, while investigating I discovered i2c-algo-bit calls
cond_resched(), which makes it a bad idea for us to be using as we execute
VBIOS scripts from a tasklet, and there may very well be i2c transfers as
a result.

So, since I already wrote this code in userspace to track down the NVS 300
bug, and it's not really much code - lets use it.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Was using nv_mask, which is bad.  Reading the reg senses the current line
states, which aren't necessarily the states we're trying to drive the
lines to.

Fixed to store SCL driver state just as we already do for SDA.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Not much point parsing the vbios data into a struct which is only used once
to parse the data into another struct, go directly from vbios to
nouveau_i2c_chan.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

This primary reason for this was mostly to avoid duplication of some of
this stuff by the MXM-SIS parser.  However, some other cleanups will also
follow this as a result.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>